Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (9,795,000)	$ (25,998,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	3,655,000	2,806,000
Interest expense on financing liability	2,424,000	2,371,000
Write-off of inventory	2,416,000	0
Depreciation and amortization	1,058,000	599,000
Amortization of right-of-use assets	338,000	289,000
Loss (gain) on foreign currency transaction	954,000	(1,983,000)
Other, net	50,000	256,000
Amortization of debt discount and issuance costs	469,000	469,000
Changes in operating assets and liabilities:
Accounts receivable, net	(2,913,000)	(4,829,000)
Inventory	(2,641,000)	(892,000)
Prepaid expenses and other current assets	2,426,000	(470,000)
Other assets		(320,000)
Accounts payable	2,837,000	1,745,000
Accrued expenses and other current liabilities	(5,975,000)	510,000
Deferred revenue	8,558,000	7,053,000
Recognized loss on purchase commitments	(2,074,000)	(1,502,000)
Operating lease liabilities	(686,000)	(572,000)
Deposits from customer		2,104,000
Net cash provided by (used in) operating activities	1,156,000	(18,248,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturity of debt securities	22,103,000	26,538,000
Purchase of property and equipment	(8,311,000)	(5,056,000)
Purchase of held-to-maturity debt securities		(55,988,000)
Purchase of available-for-sale securities		(5,000,000)
Net cash provided by (used in) investing activities	13,792,000	(39,506,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net issuance of common stock associated with stock options and restricted stock units	52,000	129,000
Payment on financing liability	(72,000)
Proceeds from market price stock purchase plan		684,000
Net cash provided by financing activities	1,154,000	813,000
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	16,102,000	(56,941,000)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	69,767,000	124,184,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	85,869,000	67,243,000
SUPPLEMENTAL CASH FLOWS DISCLOSURES:
Interest paid in cash	3,700,000	3,600,000
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Reclassification of Midcap credit facility from long-term to current	11,667,000
Reclassification of Thirona convertible notes and interest receivable from current to long-term	7,726,000
Non-cash construction in progress, property and equipment	2,438,000	383,000
Reclassification of investments from long-term to current	1,468,000	14,813,000
Right-of-use asset modification	728,000
Goodwill adjustment for a reduction in rebate-related liabilities	430,000
Issuance of common stock under employee stock purchase plan		740,000
The Mann Group L L C
Adjustments to reconcile net loss to net cash used in operating activities:
Interest expense on Mann Group convertible note	55,000	$ 116,000
At The Market Issuance
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from at-the-market offering	1,198,000
Issuance costs associated with at-the-market offering	$ (24,000)